crapulous \KRAP-yuh-lus\, adjective
1. Suffering the effects of, or derived from, or suggestive of gross intemperance, especially in drinking; as, a crapulous stomach.
2. Marked by gross intemperance, especially in drinking; as, a crapulous old reprobate.
Crapulous is from Late Latin crapulosus, from Latin crapula, from Greek krapale, drunkenness and its consequences, nausea, sickness, and headache.
Nice. I guess that's why they say excessive drinking makes you feel like shit. :P